Nonlinear Predictions for HDPE Pipe Response under Parallel Plate Loading
Publication: Journal of Transportation Engineering
Volume 124, Issue 3
Abstract
Polymer sewer pipe load carrying ability when deflected to 20% pipe deformation under parallel plate loading is used in industry as an index of pipe quality. New developments in limit states design also require the assessment of pipe response beyond the small deflection limits currently specified (between 5 and 7.5% change in pipe diameter). New material models recently developed to predict the nonlinear time-dependent response of high density polyethylene (HDPE) are used in a materially and geometrically nonlinear finite-element analysis to predict pipe response during the flattening test. Comparisons are made with test results for two different plain HDPE pipes. The new analysis permits good quality predictions of pipe response to be made at large deformations (20% vertical diameter decrease) where materially nonlinear polymer response occurs at crown, invert, and springline. Modeling permits pipe response to be evaluated under a constant rate of deformation, stress relaxation, and other load paths.
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References
1.
American Association of State Highway and Transportation Officials (AASHTO). (1986). Flexible culvert committee, soil-thermoplastic pipe interaction systems, section 18. Washington, D.C.
2.
Carter, J. P., Booker, J. R., and Davis, E. H.(1977). “Finite deformation of an elasto-plastic soil.”Int. J. Numer. and Analytical Methods in Geomech., 1, 25–43.
3.
Moore, I. D. (1994a). “Profiled HDPE pipe response under parallel plate loading.”Spec. Tech. Publ. 1222, Buried Plastic Pipe Technology, Second Vol., Dave Eckstein, ed., ASTM, Philadelphia, Pa., 25–40.
4.
Moore, I. D. (1994b). “Three dimensional time dependent models for buried HDPE pipe.”Proc., 8th Int. Conf. on Comp. Methods and Advances in Geomech., H. J. Siriwardane, ed., Vol. 2, A. A. Balkema, Rotterdam, The Netherlands, 1515–1520.
5.
Moore, I. D., and Hu, F.(1996). “Linear viscoelastic modeling of profiled high density polyethylene pipe.”Can. J. Civ. Engrg., Ottawa, Canada, 23, 395–407.
6.
Moore, I. D., and Zhang, C. (1995). “Computer models for predicting HDPE pipe stiffness.”Annu. Conf., Can. Soc. for Civ. Engrg., Ottawa, Canada, 565–574.
7.
Zhang, C., and Moore, I. D.(1997a). “Finite element modeling of inelastic deformation of ductile polymers.”Geosynthetics Int., 4(2), 137–163.
8.
Zhang, C., and Moore, I. D.(1997b). “Nonlinear mechanical response of high density polyethylene: part I—experimental investigation and model evaluation.”Polymer Engrg. and Sci., 37(2), 404–413.
9.
Zhang, C., and Moore, I. D.(1997c). “Nonlinear mechanical response of high density polyethylene: part II—uniaxial constitutive modeling.”Polymer Engrg. and Sci., 37(2), 414–420.
10.
Zienkiewicz, O. C., and Cormeau, I. C.(1974). “Visco-plasticity, plasticity and creep in elastic solids—a unified numerical solution approach.”Int. J. Numer. Methods in Engrg., 8, 821–845.
Information & Authors
Information
Published In
Journal of Transportation Engineering
Volume 124 • Issue 3 • May 1998
Pages: 286 - 292
Copyright
Copyright © 1998 American Society of Civil Engineers.
History
Published online: May 1, 1998
Published in print: May 1998
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